The fast-growing carrier, which claims to be Europe’s third biggest, will put 1.1 million seats on sale for flights to and from the UK.
More than 6,000 flights are available to book for travel between August 15 and October 30 next year – up around 5% compared to the same period in 2015.
Thomas Ramdahl, chief commercial officer for Norwegian, said: "Next summer is set to be Norwegian’s biggest ever in the UK as our free Wi-Fi and unique low cost services to America continue to attract record numbers of passengers.
"We expect to see demand for the Canary Islands continue to grow in 2016 as well as key Spanish destinations such as Alicante and Barcelona. Further afield Norwegian will be launching four flights per week to Boston and Orlando will return to the schedule for summer."
New routes include: London to Boston; London to Los Angeles; Birmingham to Madrid; and Manchester to Oslo.
